/* Copyright (C) 2013 by Bundesamt fuer Strahlenschutz
 * Software engineering by Intevation GmbH
 *
 * This file is Free Software under the GNU GPL (v>=3)
 * and comes with ABSOLUTELY NO WARRANTY! Check out
 * the documentation coming with IMIS-Labordaten-Application for details.
 */

/**
 * Controller for filter result grid.
 */
Ext.define('Lada.controller.FilterResult', {
    extend: 'Ext.app.Controller',
    requires: [
        'Lada.view.window.ProbeEdit',
        'Lada.view.window.Messprogramm'
    ],

    /**
     * Initialize the Controller with listeners
     */
    init: function() {
        this.control({
            'filterresultgrid': {
                itemdblclick: this.editItem
            },
            'store': {
                beforeload: this.loadingAnimationOn,
                load:   this.loadingAnimationOff
            },
            'filterresultgrid toolbar button[action=addProbe]': {
                click: this.addProbeItem
            },
            'filterresultgrid toolbar button[action=addMessprogramm]': {
                click: this.addMessprogrammItem
            },
            'filterresultgrid toolbar button[action=import]': {
                click: this.uploadFile
            },
            'filterresultgrid toolbar button[action=export]': {
                click: this.downloadFile
            }
        });
        this.callParent(arguments);
    },
    /**
     * Enable the Loading Animation of the Grid.
     */
     loadingAnimationOn: function(store, operation) {
        store.up('grid').setLoading(true);
     },

    /**
     * Disable the Loading Animation of the Grid.
     */
     loadingAnimationOff: function(store, operation) {
        store.up('grid').setLoading(false);
     },

    /**
     * This function is called after a Row in the
     * {@link Lada.view.grid.FilterResult}
     * was double-clicked.
     * The function opens a {@link Lada.view.window.ProbeEdit}
     * or a {@link Lada.view.window.MessprogrammEdit}.
     * To determine which window has to be opened, the function
     * analyse the records modelname.
     */
    editItem: function(grid, record) {
        var mname = record.store.model.modelName || '';
        var winname = '';

        //Based upon the Model that was loaded, act differently
        if (mname == 'Lada.model.ProbeList'){
            winname = 'Lada.view.window.ProbeEdit';
        }
        else if (mname == 'Lada.model.MessprogrammList'){
            winname = 'Lada.view.window.Messprogramm';
        }
        if (winname){
            var win = Ext.create(winname, {
                record: record
             });
            win.show();
            win.initData();
        }
        else {
            console.log('The model is unknown.'
                +'No window was configured to display the data.'
                +'I retrieved a model named:' + mname
            );
        }
    },

    /**
     * This function opens a new window to create a Probe
     * {@link Lada.view.window.ProbeCreate}
     */
    addProbeItem: function() {
        var win = Ext.create('Lada.view.window.ProbeCreate');
        win.show();
        win.initData();
    },

    /**
     * This function opens a new window to create a Probe
     * {@link Lada.view.window.MessprogrammCreate}
     */
    addMessprogrammItem: function() {
        var win = Ext.create('Lada.view.window.Messprogramm');
        win.show();
        win.initData();
    },

    /**
     * This function opens a {@link Lada.view.window.FileUpload}
     * window to upload a LAF-File
     */
    uploadFile: function() {
        var win = Ext.create('Lada.view.window.FileUpload', {
            title: 'Datenimport',
            modal: true
        });

        win.show();
    },

    /**
     * This function can be used to Download the items which
     * were selected in the {@link Lada.view.grid.FilterResult}
     * The Download does not work with Internet Explorers older than v.10
     */
    downloadFile: function(button) {
        var grid = button.up('grid');
        var selection = grid.getView().getSelectionModel().getSelection();
        var i18n = Lada.getApplication().bundle;
        var proben = [];
        for (var i = 0; i < selection.length; i++) {
            proben.push(selection[i].get('id'));
        }

        Ext.Ajax.request({
            method: 'POST',
            url: 'lada-server/export/laf',
            jsonData: {'proben': proben},
            headers: {'X-OPENID-PARAMS': Lada.openIDParams},
            success: function(response) {
                var content = response.responseText;
                var blob = new Blob([content],{type: 'text/plain'});
                saveAs(blob, 'export.laf');
            },
            failure: function() {
                // TODO handle Errors correctly, especially AuthenticationTimeouts
                Ext.Msg.create(i18n.getMsg('err.msg.generic.title'),
                    i18n.getMsg('err.msg.laf.filecreatefailed'));
            }
        });
    }
});